* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 顶部运行天数栏 */
.run-status {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 8px 0;
    font-size: 14px;
}

/* 导航栏 */
nav {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: #3498db;
}

/* 内容容器 */
.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

h1 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #2c3e50;
    border-left: 5px solid #3498db;
    padding-left: 15px;
}

h2 {
    font-size: 24px;
    margin: 25px 0 15px;
    color: #34495e;
}

p {
    margin-bottom: 15px;
    font-size: 16px;
    line-height: 1.8;
}

ul.advantage-list {
    list-style: none;
    margin: 20px 0;
}

ul.advantage-list li {
    background-color: #fff;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* 下载按钮 */
.download-btn {
    display: inline-block;
    background-color: #3498db;
    color: #fff;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 18px;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #2980b9;
}

/* 底部版权 */
footer {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
}